CVE-2023-21707CWE-502insecure-deserialization

CVE-2023-21707

High · published February 15, 2023

Patch now

High probability of exploitation

CVSS calls it high at 8.8. It sits in the 99.7th percentile for exploit probability.

CVSS v3.1
8.8
EPSS
82%
Percentile
99.7
In the wild
Unconfirmed
What it is

Microsoft Exchange Server Remote Code Execution Vulnerability

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.82020 · 99.7th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2023-02-15T01:15Z
Affected products (4)
ProductVersionsFixed in
microsoft/exchange_serverall versions—
microsoft/exchange_serverall versions—
microsoft/exchange_serverall versions—
microsoft/exchange_serverall versions—
References (2)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21707 · [email protected]https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21707 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 14 FEB 19:32Z
    Microsoft Exchange Server Remote Code Execution Vulnerability
    cvelistv5